The BMW M51 was an inline six-cylinder diesel engine built at the Upper Austrian BMW plant in Steyr from July 1991 through February 2000, succeeding the M21 and followed by the M57. It was water-cooled and turbocharged with indirect injection, supplied by an electronically controlled Bosch VP37 distribution pump, and it displaced 2,497 cc with a compression ratio of 22.0:1. Some variants added an intercooler and carry the tds designation. It has a cast iron block, an aluminium head, one chain-driven overhead camshaft and two valves per cylinder, and compared with the M21 it gained tappets and hydraulic valve lash adjustment. Bosch DDE 2.1 controlled injection in the first engines and all E36 models, replaced by DDE 2.2 for more torque at low revs. It powered the 325td and 325tds, the 525td and 525tds and the 725tds, as well as the Range Rover and the Opel Omega B.
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Fuel or Cycle Configuration Cylinder Count Connections
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Source BMW M51 (Wikipedia)
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The BMW M51 is an inline-6 cylinder Diesel engine produced by the Upper Austrian BMW plant in Steyr from July 1991 through February 2000.
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1. BMW M51 (Wikipedia)
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The BMW M51 is an inline-6 cylinder Diesel engine produced by the Upper Austrian BMW plant in Steyr from July 1991 through February 2000.
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The BMW M51 is an inline-6 cylinder Diesel engine produced by the Upper Austrian BMW plant in Steyr from July 1991 through February 2000.
Lead, layout
The BMW M51 is an inline-6 cylinder Diesel engine produced by the Upper Austrian BMW plant in Steyr from July 1991 through February 2000.
Lead, fuel
The BMW M51 is an inline-6 cylinder Diesel engine produced by the Upper Austrian BMW plant in Steyr from July 1991 through February 2000.
Lead, maker
The BMW M51 is an inline-6 cylinder Diesel engine produced by the Upper Austrian BMW plant in Steyr from July 1991 through February 2000.
In Group: Road Car Engines of Europe and Japan, Lead
The BMW M51 is an inline-6 cylinder Diesel engine produced by the Upper Austrian BMW plant in Steyr from July 1991 through February 2000.
Exemplifies: Automobile Transport, Lead, mode
The BMW M51 is an inline-6 cylinder Diesel engine produced by the Upper Austrian BMW plant in Steyr from July 1991 through February 2000.
Of Make: BMW, Lead, make
The BMW M51 is an inline-6 cylinder Diesel engine produced by the Upper Austrian BMW plant in Steyr from July 1991 through February 2000.
Part Of: BMW 3 Series, Applications
1991 - 1996 BMW 325td (M51D25 UL)
Part Of: BMW 7 Series, Applications
1996 - 2000 BMW 725tds (M51D25TÜ OL)
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